Dock for charging and USB

I am thinking about using some modeling clay and creating a dock for my M002. I figured i'd have Power, USB, and audio out.USB may be tricky, can anyone verify that the M003 connection is the same as Apple's 30 pin connector?I'd figure i can mold it out of clay including some cable extenders, then sand it down and add some paint to make it look pretty.Thoughts?

I buy a 30 Pin to USB Female Adapter that Support Pen Drive and works in M001 M002 M003 M003T M005 M006 M007 M008 M009 MID. I use it in a M002 with four different pen drives and a mini keyboard and works OK. The cable is not the same that connect with the computer.
I buy it at Pandawill: